Fenpyroximate 唑螨酯

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唑螨酯

农药简介
英文通用名 fenpyroximate
产品名称: 唑螨酯
英文品名: Benzoic acid,4-[[[[(1,3-dimethyl-5-phenoxy-1H-pyrazol-4-yl)methylene]amino]oxy]methyl]-,1,1-dimethylethyl ester
Cas号: 111812-58-9
别名:(E)-α-(1,3-二甲基-5-苯氧基吡唑-4-基亚甲基氨基氧)-对甲苯甲酸叔丁酯;霸螨灵;杀螨王;Danitron;速霸螨
分子式: C24H27N3O4
分子量: 421.5

唑螨酯(111812-58-9)理化性质:
纯品为白色结晶。溶解性(25℃):甲醇15g/L,丙酮150g/L,氯仿1197g/L,二氯甲烷1307g/L,丙亚胺737g/L。蒸气压0.0075mPa(25℃),熔点101.1~102.4℃,密度1.259/cm2,20℃在水中的溶解度为1.46×102mg/L。在酸性和碱性条件下稳定。

剂型: 5%悬浮剂

毒性
原药急性经口LD50:雄大鼠480mg/kg,雌大鼠245mg/kg。对兔皮肤无刺激,对眼睛有轻微刺激。雄、雌大鼠急性经皮LD50>2g/kg。雄大鼠急性吸入LC500.33mg/L。对人的ADI0.01mg/kg体重。饲喂试验无作用剂量:雄大鼠0.97mg/kg体重,雌大鼠1.21mg/kg体重。在长时间试验过程中,无致癌性、无致畸性和突变性。鱼毒LC50(96小时):虹鳟0.079,鲤鱼0.29mg/L。鹌鹑和野鸭LD50>2000mg/kg,鹌鹑和野鸭LD50(8天)>5g/kg。水蚤LC50(24小时)0.204mg/L。属中等毒杀螨剂。对家蚕、鸟的毒性较低。对鱼、虾、贝类等毒性较高。对兔的皮肤和眼睛有轻微的刺激性。在试验剂量内,对试验动物无致突变、致畸、致癌作用。两年慢性毒性喂养试验,大鼠的急性经口无作用剂量为25mg/kg。

剂型 5%唑螨酯悬浮剂。

特点 唑螨酯为肟类杀螨剂,E体比Z体杀螨活性高,作用方式以触杀作用为主。杀螨谱广,并兼有杀虫治病作用。杀螨速度快

唑螨酯(111812-58-9)的用途:
为高效、广谱苯氧基吡唑类杀螨剂。对多种害螨有强烈触杀作用,对幼螨活性最高,且持效期长。对其他药剂无交互抗性。防治苹果红蜘蛛用16~25mg/L药液喷雾;柑橘红蜘蛛用25~50mg/L药液喷雾。

防治对象:
柑橘红蜘蛛、四斑黄蜘蛛、苹果红蜘蛛、山楂红蜘蛛、棉红蜘蛛、柑橘锈壁虱、梨、桃、葡萄和樱桃上的叶螨、(茶)神泽叶螨、草莓、西瓜和甜瓜上的叶螨和跗线螨等。它对活动期的螨效果很好,对螨卵也有丁定效果,并能杀死孵化后的螨。它对捕食螨、草蛉、瓢虫、蜘蛛和寄生蜂等天敌较安全,对蜜蜂无不良影响。对家蚕有拒食作用。

适用范围
适用于多种植物上防治红叶螨和全爪叶螨。对小菜蛾、斜纹夜蛾、二化螟、稻飞虱、桃蚜等害虫及稻瘟病、白粉病、霜霉病等病害亦有良好防治作用。
使用方法
防治各种植食性螨类,推荐使用浓度为20-50mg/kg。

与其他药剂的混用:
唑螨酯可与多种杀虫剂、杀菌剂混用,如波尔多液、毒死蜱、炔螨特等多种农药混用,但不能与石硫合剂等强碱性农药混用。与其他农药混用应先进行药效试验。混配制剂有13%炔螨唑螨水乳剂、19%毒唑螨乳油等。

注意事项
1.药剂应贮放在阴凉、干燥和通风处,不可与其他食物混放。保存期3年以上。
2.本品对人畜有毒,不可吞食或渗人皮肤。使用时应注意安全,作好防护措施。施药后要
用肥皂和清水彻底清洗手、脸和衣物等。
3.本品系触杀剂,无内吸作用。喷药时叶背和叶面均要喷周到。配药时要充分摇动瓶内的药液。
4.药液不要污染水井、池塘和水源等。
5.本品在20℃以下时施用药效发挥较慢,有时甚至效果较差。在虫口密度较高时使用其持效期较短,最好在害螨发生初期使用。
6.用接触药液的桑叶喂蚕,会使其产生拒食现象,因此,在桑园附近施药时勿使药液飘移至桑园,以免污染桑叶。在桑树上的安全间隔期为25天。
7.可与包括波尔多液在内的杀虫、杀菌剂混用,但不能与石硫合剂混用,否则会产生凝结。
8.在常用浓度下对大多数作物无药害。
9.最好与其他杀螨剂交替使用。在同一作物上每年只使用1次。
10.唑螨酯每日允许摄入量(ADI)为0.01mg/kg,联合国粮农组织和国际卫生组织(FAO/WHO)规定的最大残留量(MRL值),柑橘和苹果为lμg/ml,最低稀释倍数为1000倍。采收安全间隔期为14天。
11.其安全间隔期。在柑橘、苹果、梨、葡萄和茶上为14天,在桃上为7天,在樱桃上为21天,在草莓、西瓜和甜瓜上为1天。

 

 

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fenpyroximate
Acaricide
IRAC 21; METI

  Fenpyroximate

NOMENCLATURE
Common name fenpyroximate (BSI, draft E-ISO)
IUPAC name tert-butyl (E)-a-(1,3-dimethyl-5-phenoxypyrazol-4-ylmethyleneamino-oxy)-p-toluate
Chemical Abstracts name 1,1-dimethylethyl (E)-4-[[[[(1,3-dimethyl-5-phenoxy-1H-pyrazol-4-yl)methylene]amino]oxy]methyl]benzoate
CAS RN [134098-61-6]; [111812-58-9] unspecified stereochemistry Development codes NNI-850 (Nihon Nohyaku)

PHYSICAL CHEMISTRY
Composition Tech. is 97.0%. Mol. wt. 421.5 M.f. C24H27N3O4 Form White, crystalline powder. M.p. 101.1-102.4 ºC V.p. 0.0075 mPa (25 ºC) KOW logP = 5.01 (20 ºC) S.g./density 1.25 g/cm3 (20 °C) Solubility In water 1.46 ´ 10-2 mg/l (20 ºC). In methanol 15, acetone 150, dichloromethane 1307, chloroform 1197, tetrahydrofuran 737 (all in g/l, 25 ºC). Stability Stable in acid and alkali.

COMMERCIALISATION
History Acaricide reported by T. Konno et al. (Proc. 1990 Br. Crop Prot. Conf. - Pests Dis., 1, 71). Introduced in 1991 by Nihon Nohyaku Co., Ltd. Manufacturers Nihon Nohyaku

APPLICATIONS
Biochemistry Inhibitor of mitochondrial electron transport at complex I. Mode of action Quick knockdown activity against larvae, nymphs and adults, mainly by contact and ingestion. Also some moulting inhibitory activity on nymphs. Uses Control of important phytophagous mites. Effective against Tetranychidae (spider mites), Tarsonemidae, Tenuipalpidae (false spider mites) and Eriophyidae in citrus, apple, pear, peach, grapes, etc., at 25-75 g/ha. Phytotoxicity Not phytotoxic to top fruit, citrus, tea, vegetables and ornamentals. Formulation types SC. Compatibility Incompatible with calcium polysulfide. Selected products: 'Danitoron' (Japan) (Nihon Nohyaku); 'Danitron' (Nihon Nohyaku); 'Ortus' (Nihon Nohyaku); 'Pamanrin' (China) (Nihon Nohyaku)

OTHER PRODUCTS
'Akari' (Nihon Nohyaku, Sepro); 'Kiron' (Nihon Nohyaku); 'Manhao' (Taiwan) (Nihon Nohyaku); 'Meteor' (Nihon Nohyaku); 'Acaban' (Syngenta); 'Acaritan' (Bayer CropScience); 'Asalto' (Syngenta); 'Dynamite' (Syngenta); 'Kendo' (Bayer CropScience); 'Miro' (Bayer CropScience); 'Naja' (Syngenta); 'Sequel' (Bayer CropScience); 'Terror' (Calliope) mixtures: 'Superman' (+ propargite) (China) (Nihon Nohyaku)

ANALYSIS
Product analysis by hplc; residues in soil by glc, in water by hplc, in plants by glc/hplc.

MAMMALIAN TOXICOLOGY
Reviews FAO/WHO 74, 76 (see part 2 of the Bibliography). See also J. Pestic. Sci., 17, S261-267 (1992). Oral Acute oral LD50 for male rats 480, female rats 245 mg/kg. Skin and eye Acute percutaneous LD50 for male and female rats >2000 mg/kg. Non-irritating to skin; slightly irritating to eyes (rabbits). Inhalation LC50 (4 h) for male rats 0.33, female rats 0.36 mg/l. NOEL for male rats 0.97, female rats 1.21 mg/kg b.w. ADI (JMPR) 0.01 mg/kg b.w. [1995]. Other Not carcinogenic, teratogenic or mutagenic in long-term studies. Toxicity class WHO (a.i.) II (company classification)

ECOTOXICOLOGY
Birds LD50 for bobwhite quail and mallard ducks >2000 mg tech./kg. Dietary LD50 (8 d) for bobwhite quail and mallard ducks >5000 ppm. Fish LC50 (48 h) for carp 0.006 mg/l. Daphnia LC50 (3 h) 0.085 mg/l. Bees No adverse effect on honeybees at 250 ppm (5 ´ recommended dose). Other beneficial spp. Relatively non-toxic to predacious mites. Little adverse effect at 25-50 ppm on Chrysoperla carnea, Harmonia axyridis, Ephedrus japonicus, Misumenops tricuspidatus, Lycosa pseudoannulata, Orius sp., Scolothrips sp.

ENVIRONMENTAL FATE
Soil/Environment DT50 26.3-49.7 d (J. Pestic. Sci., 18, 67-75 (1993)).